Window construction



April 22, 1958 G. NUEBEL I 2,831,220

WINDOW CONSTRUCTION Filed May 23, 1955 2 Sheets-Sheet 1 INVENTOR.6022Zie6 NuebeZ ATTORNEYS United States Patent '0 WINDOW CONSTRUCTIONGottlieb Nuebel, South Norwalk, Conn.

Application May 23, 1955, Serial No. 510,091

6 Claims. (Cl. 20-42) This invention relates to window constructions,and more particularly to windows having both slidable and swingablesashes.

An object of the invention is to provide an improved window of the typehaving upper and lower movable sashes, wherein by a single movement boththe said sashes may be moved or shifted to open and closed positions.

Another object of the invention is to provide an improved window asabove set forth, wherein one sash is of the slidable type and the otherswingable or hinged.

A further object of the invention is to provide an improved windowconstruction having a lower swingable sash and an upper slidable sash,which is so arranged and organized that swinging movement of the lowersash will automatically raise or lower the upper sash, thereby toprovide for an advantageous double ventilation.

A still further object of the invention is to provide an improvedtwo-sash window in accordance with the above, wherein both sashes may beswung to open position, the swinging of the upper sash occurring afterit has first been slidably lowered.

Yet another object of the invention is to provide an improved windowconstruction as above set forth, which is extremely simple andeconomical to fabricate, yet sturdy and reliable in its functioning.

A feature of the invention resides in the provision of improved chain orcord-operated actuating means for a window of the above type, whichrequires but little room and may be readily installed on existingframes.

Another feature of the invention resides in the provision of an improvedwindow as above set forth, which may be utilized with a full lengthscreen when such is desired.

Other features and advantages will herein after appear.

In the accompanying drawings:

Fig. 1 is an inside elevational view of a window construction made inaccordance with the invention.

Fig. 2 is a vertical sectional view taken on line 22 of Fig. 1, thesashes being in closed positions.

Fig. 3 is a view like Fig. 2 but with the sashes in open positions.

As shown, the improved window construction of the present inventioncomprises a frame having side members 11, a top member 12, and a sillportion 13. Mounted in the frame 10 are upper and lower sashes 14 and15, the upper sash being preferably of lesser height than the lower, andbeing downwardly slidable edgewise in the frame 10. Short guides 12a areprovided in the upper portions of the frame 12, which are cleared by thesash 14 when in the open position shown in Fig. 3. The sash 14 may thusbe readily removed from the frame 12, insofar as its mounting isconcerned. The lower sash 15 is merely set in the frame 12 againstguides 12b, and is swingable inward or to the left as shown in Fig. 3.For this purpose the lower member 16 of the frame 15 is provided with astepped or shouldered edge engageable with a sill S of the frame 12,such engagement constituting in effect a hinged connection.

Referring'to Fig. 2 the sashes 14 and 15 have cooperable edge portions14a and 15a respectively, provided with stepped interfittingconfigurations whereby a tight ing means are provided by which movementof one of the sashes 14, 15 will result in opening or closing movementof the other sash. Thus an operator may swing inward the lower sash 15and cause the upper sash 14 to slide, downward, and the opposite mayalso be done, thereby to readily effect and control an advantageousdouble ventilation through the window. In accomplishing the above 1provide spring-charged means for normally holding the upper sash 14 inraised or closed position, said means comprising pulleys 18 secured tothe upper corner portions of the frame 10, lines 19 and 20 passingaround the pulleys 18, and springs 21, 22 and 23 secured to the linesand also releasably secured to the lower corner portions 24 of the uppersash 14 by hookand-eye or other suitable connections 14c. By theprovision of the three springs 21, 22 and 23 together with the pulleys18 and lines 19 an advantageous soft or smooth-acting spring return isprovided which is simple and economical to construct and reliable at alltimes in returning the upper sash 14 to the raised, windowclosingposition.

I further provide pairs of pulleys 26 and 27 at opposite sides of theframe 10 and on the lower portions thereof, and lines 28 passing aroundsaid pulleys and releasably secured respectively to the sashes 14 and 15by hook-and-eye or other suitable connections 14b and 15b. Preferably,as shown in Figs. 2 and 3, the lines 28 are secured to the lower sash 15approximately half way between the top and the bottom of the sash, andare fastened to the lower corners 24 of the upper sash 14.

The pulleys 27 and 26 are disposed one above the other, the lowermostpulleys 26 serving to reverse the direction of the lines 28 and thepulleys 27 co-operating with the pulleys 26 to enable the swingingmovement of the lower sash 15 to be effective in causing longitudinalmovement of the lines 28. The arrangement of the pulleys 26, 27 and thelines 28 is such that when the sash 15 is swung inward as shown in Fig.3 it will slide downward the upper sash 14, thus providing for doubleventilation through the window. When the lower sash 15 is swung closed,the springs 21, 22 and 23 will automatically raise the upper sash 14,enabling both sashes to become vertically aligned in window-closingposition as shown in Fig. 2. By the provision of the separableconnections 14b, 14c, and 15b, in conjunction with the removablemountings of the sashes, both the sash 14 and the sash 15 may be,without the use of tools, completely disconnected and removed from theframe 12 when desired, as for example in the case of fire, for repair orcleaning, etc.

When the upper sash 14 is lowered, as shown in Fig. 3, it may be readilyswung inward as shown by the broken lines, being supported wholly by thechains or lines 19 and 28.

In the above description it is intended that the term linesf includeschains, wire rope and other equivalent parts, and that the term pulleysincludes sprockets,

rollers, V-pulleys and the like. In the drawings chains and sprocketsare shown.

For the purpose of taking up slack in the lines 28 I provide springs 30connected in the lines, and preferably keep the said lines continuous,with portions thereof (indicated at 31) extending between the ends ofthe springs 30. Thus, a positive drive is established between the lowersash 15 and the upper sash 14, while at the same time the flexibilityprovided by the springs 30 is had.

It will be understood that the usual one piece screen may be employed onthe outside of the window, if such is desired.

I have found that my improved window construction as above set forth issimple and economical to construct, and reliable in operation at alltimes, and provides an advantageous means by which upper and lowerventilation may be effected in response to operation of only one of thesashes.

Variations and modifications may be made within the scope of the claimsand portions of the improvements may be used without others.

I claim:

1. A window construction comprising an upright frame; a pair of windowsashes disposed one substantially wholly above the other when closingthe frame and each sash closing a difierent portion of the frame, onesash being vertically slidable in the frame with a translationalmovement and the other sash being adapted to hinge on an edge of theframe; and means responsive to swinging movement of the said other sashaway from the frame, for causing vertical sliding movement of the saidone sash in the frame.

2. The invention as defined in claim 1, in which'the slidable sash isswingable away from the frame after it has been slid vertically downwardin response to the said swinging movement of the other sash.

3. The invention as defined in claim 2, in which the frame has shortguides, the slidable sash being swingable away from the frame after ithas been shifted to open position and has cleared said guides.

4. The invention as defined in claim 1, in which there is spring meansfor automatically sliding closed the slidabie sash when the latter isfree to move, said spring means including a pair of pulleys secured tothe frame, including lines passing over said pulleys, and includingextension springs secured to said lines and to the said slidable sash.

5. The invention as defined in claim 1, in which the means for causingsliding movement of the first sash comprises pulleys secured to theframe and lines passing around said pulleys, the ends of said linesbeing secured respectively to the said sashes.

6. The invention as defined in claim 5, in which there are springsconnected to portions of the lines, normally taking up the slacktherein, said lines being continuous and extending in part between theends of the springs.

References Cited in the file of this patent UNITED STATES PATENTS1,914,242 Core June 13, 1933 FOREIGN PATENTS 2,903 Great Britain Feb. 5,1904

